Co-authored-by: LRY89757 <LRY89757@users.noreply.github.com>
Co-authored-by: nihuini <nihuini@tencent.com>
Co-authored-by: nihui <shuizhuyuanluo@126.com>

* Add DeformableConv2D
* add unittest and docs
* pnnx torchvision deformconv2d conversion

Co-authored-by: miemie2013 <miemie2013@users.noreply.github.com>
Co-authored-by: nihui <shuizhuyuanluo@126.com>

Signed-off-by: Zhouzhou <1197236910@qq.com>

* Update release.yml

* Update how-to-build.md

- Translated Chinese documents into English
- Updated to VS2022 version

1. 🐛Fix Bug of float and int.  修复了std::max()中参数int和float参数不符合的Bug
2. 👀 The structure of ncnn changes.  ncnn文件结构变动,所有testlayer.cpp改成在tests/文件夹中

* basic mips msa optimization for convolution int8

* mips msa optimization for convolution int8 gemm

* mips msa optimization for convolution int8 winograd pack8to4/pack8to1

* mention msa maddv/msubv intrinsics bug

Co-authored-by: MegEngine <megengine@megvii.com>

* fix sigmoid returns nan with very large input

Add detailed troubleshooting method for vkCreateInstance failed -9

Co-authored-by: ElvisYu <elvisyuovo@gmail.com>
Co-authored-by: 余浩文 <m18107220188@163.com>
Co-authored-by: Zr2223 <67497651+Zr2223@users.noreply.github.com>

* faq update

* remove '-'

Co-authored-by: Homura <1851908600@qq.com>

change weight type

Adjust the command line format on "Build for Linux"

* build macos vulkan

* drop rt

* load swiftshader

* workaround swiftshader fltmax fp16 nan

Co-authored-by: zhuo@mbp <imzhuo@foxmail.com>

vulkansdk version update